The world is progressively investing and looking for new and cleaner energy
alternatives. This work studies the option for energy generation through the Organic Rankine
Cycle (ORC) in which the main fuel for this system is the Açaí biomass. In recent years, they
occur in Brazil and also in the state of Amazonas, one of the greatest demands and
manipulation of the açaí fruit, and the residues of this fruit, for the most part, still do not have
adequate destination. In this project a thermal efficiency simulation study is conducted
through the objective function associated with a thermal model of the CRO system. From the
development of a computational routine, in open code, in the Wolfram simulator, the
simulation study of the thermal efficiency of the proposed CRO cycle was carried out,
indicating the best configuration from 09 (nine) possible scenarios obtained by the selection
of 03 (three) working fluids and 03 (three) biomass boilers available in the domestic market.
The commercial fluids set for this study are the refrigerants R245fa, R123 and R134a. And
the commercial boilers that were part of the selection of this project are from manufacturers
Henan Yuanda Boiler Corporatin LTD, Xinxiang Gongshen Boiler Co. and Henan Dakai
Thermal Technology. Due to the thermodynamic properties inherent to organic working
fluids that directly influence the optimization of component design, operating conditions and
cycle efficiency, it is possible to verify the performance of the cycle and how it behaves
thermodynamically in conditions closer to real ones through simulations. computational,
using equations of thermodynamic properties, and comparing results of efficiencies. The
simulation model, despite being a simplified model, proved to be adequate to select the CRO
boiler and working fluid set combined with açaí as biofuel. From 9 simulated scenarios, the
fluid R134a and boiler 2 model: WNS2-1.25-Q of the company Xinxiang Gongshen Boiler
Co.Ltd were selected as a “best configuration” of the system in this work. Manufacturer,
Trading Company.
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